package base.abstractTest;

public class Demo {
    public static void main(String[] args) {
        DemoInterface testDemo = new TestDemo();
        testDemo.testOne();
        testDemo.testTwo();
        String s = testDemo.testFour();

        AbstractTest abstractTest = new AbstractTest();
        abstractTest.testOne();
        abstractTest.testTwo();
        abstractTest.testFour();

        System.out.println(DemoInterface.A);
        DemoInterface.testThree();
    }
}
